Verify the identity.cos 4x = cos4 x - 6 sin2 x cos2 x+ sin4 x
What will be an ideal response?
cos 4x = cos [2(2x)] = cos22x - sin22x = 
= cos4 x - 6 sin2 x cos2 x + sin4 x
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Find all real numbers that satisfy the equation.2 sin (?/2) - 
= 0
A. 
B. 
C. 
D. 
Determine if the series defined by the formula converges or diverges.a1 = 7, an+1 = 
an
A. Diverges B. Converges
For the given whole number, determine the place value of the digit 3.45,271,903
A. ten-millions B. ones C. hundreds D. tens
An investment firm offers 3 stock portfolios, A, B, and C. The number of blocks of each type of stock in each of these portfolios is summarized in the following table: 
A client wants 33 blocks of high-risk stock, 27 blocks of moderate-risk stock, and 30 blocks of low-risk stock. How many of each portfolio should be suggested.
What will be an ideal response?